The file name should be all in capital letters or small letters and the 4 font libraries should be complete. Otherwise it will be regarded as non-complete font library, and won’t be displayed in the list of MOBI READER font library.

-------------------------------------------------------------------------------------------------How to update your V31) Simply download the file v2.02EN from http://www.jinke.com.cn/Compagesql/English/service/update.asp2) Unzip the file into EMPTY 1GB SD CARD (Provided by Jinke)3) Plug the USB cable into computer and Hanlin V34) Press the Volume + and power at once.5) When you heard the "Beep" sound, just let the device update itself ... :)